Smartliving SmartLAN/G/SI <=6.x contains an unauthenticated server-side request forgery vulnerability in the GetImage functionality through the host parameter. Attackers can exploit the onvif.cgi endpoint by specifying external domains to bypass firewalls and perform network enumeration through arbitrary HTTP requests.
The web server receives a URL or similar request from an upstream component and retrieves the contents of this URL, but it does not sufficiently ensure that the request is being sent to the expected destination.